Window lock



May 3, 1955 L.HAZY

WINDOW LOCK Filed Sept. 20, 1951 HVVENTDR.

.L/LY} M927 4. 414M) United States Patent WINDOW LOCK Lily Hazy, NewYork, N. Y.

Application September 20, 1951, Serial No. 247,474

3 Claims. (Cl. 292-148) This invention relates to improvements in windowlocks, and has for an object the provision of a window lock which may beeasily installed on existing windows.

Another object of the invention is the provision of a window lockwherein the attaching screws are all covered by the locking bolt whenthe window is locked.

A further object of the invention is the provision of a window lockwherein the bolt and a stationary part are locked together by aremovable locking member which cannot be opened or forced by a burglar,even if he broke a pane of glass adjacent to said lock to gain betteraccess thereto.

Yet another object of the invention is the provision of a window lock,of the character described, which may be utilized for locking the windowin a partially open state, thereby providing both safety and ventilationfor the occupant of a room in which the window is located.

Other objects and advantages of the invention will be apparent to thoseskilled in the art, upon a study of this specification and theaccompanying drawings.

Referring to the drawings which are given by way of example toillustrate the invention:

Figure l is a perspective view showing my new and improved window lockinstalled on the two meeting rails of a pair of sash; V

Figure 2 is a plan view of the boltef the lock of Figure l;

Figure 3 is a side elevation of said bolt;

Figure 4'is an end elevation of said bolt;

Figure 5 is a plan view of the bolt receptacle as used on the meetingrail of the upper sash;

Figure 6 is a plan view of the cooperative bolt receptacle as used onthe meeting rail of the lower sash;

Figure 7 is a sectional elevation taken along the line 7-7 of Figure 6;

Figure 8 is a sectional elevation of a form of the invention for lockingthe window with a predetermined opening therein;

Figure 9 is a plan view as seen along the line 99 of Figure 8;

Figure 10 is a fragmentary view showing the lower sash locked to thewindow frame.

Referring first to Figures 1 to 7 inclusive, my new and improved windowlock is comprised of, a first bolt receptacle to be mounted on themeeting rail 21 of the upper sash, a second receptacle 22 to be mountedon the meeting rail 23 of the lower sash; and a bolt member 24.

Said first receptacle 20 is in the form of a short length of rectangulartubing, the interior passage 25 of which is open and the bolt 24 forms aworking fit therein. The second receptacle 22 may also be formed of ashort length of rectangular tubing or the like. The interior passage 26with which the bolt 24 also forms a working fit is in alignment with thereceptacle 20 when the window is closed. The bottom wall 27 has a tabextension 28 with a hole 29 extending therethrough, the purpose of whichwill be presently described. A round-end slot 31 may be 2,707,646Patented May 3, 1955 formed in the upper wall 30 to lighten the device,however this slot does not have any eifect upon the functioning of mydevice.

Formed in the upper wall 30 are spaced clearance holes 32 and 33 throughwhich the heads of the attaching screws may pass. In alignment withthese holes are respectively drilled and countersunk holes 34 and 35 toaccommodate the heads of screws for securing the receptacle on themeeting rail of a lower sash.

The first receptacle 20 is provided with like holes 32a, 33a and 34a,35a respectively, and it will be noted that when the bolt member 24 ispositioned in the receptacles 20 and 22, the screws in the countersunkholes 34, 34a, 35 and 35a are covered by the bolt member and cannot beremoved, thus providing an extra safety feature.

The bolt member 24 is comprised of a rectangular element 36 having aseries of tongues 37 disposed along one edge with grooves 38therebetween; and an element 41 having a series of tongues 39 along oneedge with grooves 40 therebetween. The tongues 37 fit in the grooves 40and the tongues 39 fit in the grooves 38 and all of the tongues havealigned holes therein through which a hinge pin 42 extends. The element41 may be cut out to match the tab extension 28, in which case, saidelement is cut away on each side near the end to form a tab 43 with anelongated hole 44 formed therein.

When the bolt element 24 is positioned in the bolt receptacles 29 and22, after they are brought into align ment, the tab extension 28 and thetab 43 coincide so that any suitable locking means may have at least aportion thereof passing through the holes 29 and 44.

In the embodiment shown in Figure l, I employ a padlock 45; a portion 46of which passes through the holes 29 and 44.

When a window lock of this nature is used, a burglar cannot remove thebolt member from the socket members 20 and 22 even though he may havebroken the glass pane 47.

Referring to Figures 8 and 9, a modification is shown wherein theportion 36 of the bolt member 24a is elongated and has a, series oftongues and slots like those shown at 37, 38 formed on the lower endthereof and engaging such tongues and slots like those shown at 39, 40,and these are formed in an element 48. Thus the 7 element 48 and thelower end of the element 36 are like- L 51 having spaced countersunkholes therein to accommodate screws 52. Secured to or formed integralwith the plate member 51 is a stud 53 having a cross hole 54 therein.The stud is of such diameter that the elongated hole 440 may pass overthe stud and thereafter a locking means; for example, a padlock 450: mayhave its U- shaped portion 46a passed through the hole 54. With thismodification the length of the portion 36 may vary in accordance withhow much the lower sash is to be left open at the bottom. In using thismodification of the device the lower sash may be raised to a point wherethe portion 41 is above the stud 54 and then the bottom sash may belowered slowly until the portion 43a passes over the stud and lies incontact with the plate 51 following which the locking means 45a may beapplied.

The form shown in Figures 8 and 9 may also be used for locking thewindows on the side, that is to say, through the jamb on either or bothsides, in which case the element 48 is screwed onto the meeting rail23:! of the lower sash, and the plate member 51 is screwed onto the jamb55, and this may be done with the window closed it it is desired to lockit in a closed position or with the window partially open if it isdesired to lock it in a partially open position. When it is desired tolock the window, after the lock has been installed thereon, the lowersash is moved to a position where the portion 41 may be swung over thestud 53 to a point where it engages the surface of the plate 51,whereupon the locking means 45a, or any other suitable locking means,may have a portion thereof passed through the hole 54 in the stud 53.

Although the modification described in Figure 10 is shown as applied tothe lower sash, it will be understood that it may be applied to theupper sash in a similar manner. In fact it has been found very practicalto apply one such lock between the lower sash and the jamb on one side,and to apply a similar lock between the upper sash and the jamb on theother side.

Although I have herein shown and described by way of example a preferredform of my new and improved window lock and a modification thereof, I donot wish to be limited by the arrangements herein shown and described,as many changes may be made in the arrangements shown and describedwithin the scope of the following claims.

What is claimed is:

l. A window lock comprising, a pair of rectangular tubular members, saidmembers having at least the interior passages therethrough substantiallyidentical in crosssection, pairs of aligned holes in opposite walls ofboth said members and each pair comprising a countersunk screw hole anda hole to accommodate a tool for driving a screw, one of said membersadapted to be mounted on the meeting rail of an upper sash and the othermember being adapted to be mounted on the upper meeting rail of a lowersash, the interior passages of said members being in alignment, saidsecond member having a lug formed integral with its lower surface andadapted to extend inwardly from said last meeting rail, and a boltmember positioned in and common to both said interior passages, saidbolt member having a lug formed integral therewith matching said firstlug, aligned holes formed in said lugs, and locking means extendingthrough said aligned holes for locking said bolt member in said alignedpassages, whereby said bolt member not only functions to lock saidmembers together but it'also functions to cover the heads of mountingscrews positioned in said countersunk holes.

2. The invention according to claim 1 in which said bolt member isformed of two parts hinged together one part being adapted to bepositioned mostly in one of said members and the other part beingadapted to be positioned mostly in the other of said members.

3. A window lock comprising, a rectangular receptacle having a hollowpassage of rectangular cross-section therethrough, spaced countersunkscrew holes formed in one wall of said receptacle for securing thelatter to the meeting rail of an upper sash, each countersunk holehaving a clearance hole in alignment therewith in the opposite wallthereof, a second receptacle having a matching passage extendingtherethrough and having like screw holes therein to accommodate screwsfor securing it to the meeting rail of a lower sash cooperating withsaid other sash and clearance holes in alignment therewith, said secondreceptacle having an extension which. overhangs said second meetingrail, a bolt member positioned in both said passages and having anoverhanging portion matching said first overhanging portion, saidoverhanging portions having aligned holes formed therein, and lockingmeans having at least a portion thereof extending through said alignedholes, whereby said bolt member may prevent movement of either the upperor the lower sash from being moved and also prevents the removal of thescrews in said screw holes therefrom as long as said bolt member ispositioned in both said passages.

References Cited in the file of this patent UNITED STATES PATENTS370,598 Best Sept. 27, 1887 1,244,104 Ledbetter Oct. 23, 1917 1,361,594Lawson Dec. 7, 1920 1,368,711 Foley Feb. 15, 1921 1,571,024 Scheid Jan.26, 1926 1,589,149 Handle June 15, 1926 2,226,346 Mussman Dec. 24, 19402,468,575 Sweaney et al Apr. 26, 1949 2,482,341 Holmsten Sept. 20, 19492,584,575 Goldwasser Feb. 5, 1952 FOREIGN PATENTS 427,819 Great BritainNov. 2, 1934 616,993 Great Britain Jan. 31, 1949

